Skip to main content

Apple Safari CVE-2026-43699

| EUVDEUVD-2026-40194 MEDIUM
Use After Free (CWE-416)
2026-06-29 apple GHSA-v8m2-c626-7f74
Memory Corruption Apple Denial Of Service Use After Free Ios And Ipados
6.5
CVSS 3.1 · Vendor: apple
Share

Severity by source

Vendor (apple) PRIMARY
6.5 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
vuln.today AI
6.5 MEDIUM

Web content delivery is network-based with no auth barrier; user must actively visit the page (UI:R); confirmed crash-only impact means C:N/I:N/A:H with no scope change.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (apple).

CVSS VectorVendor: apple

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

5
Analysis Generated
Jun 29, 2026 - 22:36 vuln.today
CVSS changed
Jun 29, 2026 - 22:22 NVD
6.5 (MEDIUM)
Patch available
Jun 29, 2026 - 22:02 EUVD
CVE Published
Jun 29, 2026 - 19:42 cve.org
UNKNOWN (no severity yet)
CVE Published
Jun 29, 2026 - 19:42 cve.org
MEDIUM 6.5

DescriptionCVE.org

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may lead to an unexpected process crash.

AnalysisAI

Use-after-free memory corruption in WebKit's web content processing causes unexpected process crashes across Safari, iOS, and iPadOS on all versions prior to 26.5.2. An unauthenticated remote attacker who can lure a user to visit a maliciously crafted web page can trigger this condition, resulting in a denial-of-service via browser process termination. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts
Continue with Google Continue with GitHub

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Attacker crafts malicious web page
Delivery
Victim is lured or redirected to crafted URL
Exploit
WebKit parses malicious content
Execution
Use-after-free triggered in memory allocator
Impact
Browser process crashes (denial of service)
Sign in to reveal

Vulnerability AssessmentAI

Exploitation The target must load attacker-controlled web content in an affected WebKit-based browser - specifically any version of Safari, or any iOS/iPadOS browser (Apple's platform policy mandates WebKit for all browsers on those platforms) prior to version 26.5.2. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 base score of 6.5 (Medium) is well-calibrated for the confirmed impact: AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H reflects broad network reachability with no authentication barrier, low attack complexity, but mandatory user interaction and availability-only impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker crafts a web page containing HTML, JavaScript, or media content engineered to trigger a specific use-after-free condition in WebKit's memory management. A victim using an unpatched Safari on macOS, or any browser on iOS or iPadOS (all of which are required to use WebKit), is socially engineered or redirected to this page, causing the browser process to crash immediately upon parsing the malicious content. …
Remediation Vendor-released patches are available: update to Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, or macOS Tahoe 26.5.2. … Detailed patch versions, workarounds, and compensating controls in full report.
Sign in to read full assessment

Threat intelligence, references, and detailed analysis are available after sign-in.

More in Ios And Ipados

View all
CVE-2026-39868 CRITICAL
9.1 Jun 29

Kernel memory corruption in Apple iOS/iPadOS (before 26.5.2) and macOS Tahoe (before 26.5.2) allows a malicious or compr
CVE-2026-43715 HIGH
8.8 Jun 29

Memory corruption in Apple's WebKit browser engine (Safari and the system WebView on iOS, iPadOS, and macOS before 26.5.
CVE-2026-43705 HIGH
8.8 Jun 29

Memory corruption via type confusion in Apple's WebKit browser engine allows attackers to corrupt memory by luring a vic
CVE-2026-43731 HIGH
8.8 Jun 29

Memory corruption via use-after-free in Apple's WebKit browser engine allows remote attackers to corrupt memory when a v
CVE-2026-28847 HIGH
8.8 May 11

Memory-corruption crash in Apple's WebKit web-content engine lets a malicious website terminate the content-rendering pr
CVE-2026-28955 HIGH
8.8 May 11

The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and
CVE-2026-28947 HIGH
8.8 May 11

Use-after-free in WebKit allows remote attackers to trigger Safari crashes and potentially achieve arbitrary code execut
CVE-2026-43735 HIGH
8.1 Jun 29

The issue was addressed with improved checks. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS

CVE-2026-28907 HIGH
8.1 May 11

Content Security Policy bypass in Apple's WebKit-based platforms (iOS, iPadOS, macOS Tahoe, tvOS, visionOS, watchOS) all
CVE-2026-43724 HIGH
7.8 Jun 29

Local privilege escalation and kernel memory corruption in Apple iOS, iPadOS (before 26.5.2) and macOS Tahoe (before 26.
CVE-2026-28904 HIGH
7.5 May 11

Memory corruption in WebKit across Apple's ecosystem enables confidentiality breach via malicious web content without us
CVE-2026-28953 HIGH
7.5 May 11

Information disclosure in Apple WebKit's web content processing engine allows remote attackers to read sensitive memory

Same weakness CWE-416 – Use After Free

View all
CVE-2019-0708 CRITICAL POC
9.8
CVE-2015-5119 CRITICAL POC
9.8
CVE-2014-0322 HIGH POC
8.8
CVE-2012-4792 HIGH POC
8.8
CVE-2009-4324 HIGH POC
7.8
CVE-2015-0313 CRITICAL POC
9.8
CVE-2015-5122 CRITICAL POC
9.8
CVE-2013-2551 HIGH POC
8.8

Same technique Memory Corruption

View all
CVE-2015-5119 CRITICAL POC
9.8
CVE-2015-3113 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2011-0611 HIGH POC
8.8
CVE-2014-0322 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8
CVE-2012-4792 HIGH POC
8.8
CVE-2010-3333 HIGH POC
7.8

Share

CVE-2026-43699 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy